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Scour Critical Bridges in Pennsylvania

2,233 bridges in Pennsylvania at risk from water erosion around foundations.

Scour Critical Bridges

Scour is the erosion of soil and rock around a bridge's foundation caused by moving water. When foundations are exposed or undermined, a bridge can collapse even if its deck and superstructure are in good condition. Scour is the leading cause of bridge failures in the US. These 2,233 bridges in Pennsylvania have been identified as vulnerable to scour damage.

Clear
Bridge State Scour Status Condition Year Built ADT
TRIB SWATARA CRK. Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 200
TRIB SWATARA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 200
SWATARA CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1924 200
TULPEHOCKEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1900 200
TULPEHOCKEN CR. Pennsylvania Scour Critical — Countermeasures Installed Fair 1972 200
LITTLE LEHIGH CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1954 200
JORDAN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1858 200
JORDAN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1860 200
GREGS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1970 200
PEQUEA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 2007 200
IRISH HOLLOW CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1910 200
ROCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1970 200
TREASTER RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1915 200
HUBER RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 2005 200
LITTLE MARTINS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1957 200
LITTLE MARTINS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1917 200
LITTLE MARTINS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1969 200
MINGO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1949 200
SILVER CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1954 200
LITTLE BUFFALO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1920 200
LITTLE BRUSH CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1943 199
EAST LACKAWANNA RIVER Pennsylvania Scour Critical — Countermeasures Installed Poor 1960 198
TRIBUTARY BULLARD CREEK Pennsylvania Scour Critical — Countermeasures Installed Good 1961 197
NORTH FORK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1961 197
OVER PRATHER CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1961 196
BRANCH OF PICKERING CRK Pennsylvania Scour Critical — Countermeasures Installed Poor 1928 194
LICK RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 194
SOUTH BRANCH RAMBO RUN X Pennsylvania Scour Critical — Countermeasures Installed Poor 1933 193
NORTH BR CALKINS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1925 193
TRIB MILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1937 192
MILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1952 192
OVER TOMBS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1921 192
IRONSTONE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1963 190
CHAMPION CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1950 190
CHESTER CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1914 188
UPPER BERMUDIAN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1938 187
LITTLE PIKE RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1928 187
APPENZELL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1915 187
OVER LOGAN RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 187
SILVER CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1953 183
COAL RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1957 182
SOUTH FORK BENS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1938 181
BUSHKILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1959 180
YELLOW CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1948 178
SILVER CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1955 178
MUDDY RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1952 178
OVER LITTLE SANDY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1966 178
OUTLET STATE POND Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 175
SIXPENNY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1907 175
THOMAS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1934 175

Scour Critical Rating Codes

Code 2 — UnaddressedBridge is scour critical with no countermeasures installed. The foundation is vulnerable and no protective action has been taken.
Code 3 — Countermeasures InstalledProtective measures (riprap, sheet piling, etc.) have been installed to reduce scour risk, but the bridge remains classified as scour critical.
Code 6 — Countermeasures IneffectiveProtective measures were installed but have been assessed as ineffective. The bridge requires re-evaluation and additional action.

About Scour Critical Bridges

Scour critical bridges have been identified through underwater inspection or analysis as having foundations that are unstable or could become unstable during flood conditions. FHWA requires action plans for all scour critical bridges. Famous scour failures include the 1987 Schoharie Creek Bridge collapse in New York.

All Bridges Poor Condition Historic Bridges Bridge Stats